Multi-Tech Systems MMV1600 SyncDataChannelTesting, Sync Data Channel Testing Procedure

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7.9

SyncDataChannelTesting

The Sync Data Channel Loopback test is used when the MultiMux has configured Port B for the sync data mode. This test simulates a modem or DSU in sync loopback mode. To use this test, configure the synchronous device for loopback test in which port B loops the data back to the synchronous device.

Table 7-7. Sync Data Channel Testing Procedure

Step Procedure

1Before the Sync Data Channel Loopback test is run, port B of the MultiMux has to be set for the sync data mode using the $MUXBSYNC command.

2Place the local MultiMux unit in Test Mode 13 (i.e., executing the Sync Data Channel Loopback test) by entering the following command.

AT&T13 (hit Return)

The supervisory console will display the following message:

AT THIS POINT IN TIME, ANY SYNC DATA

RX'D BY THE MUX IS LOOPED BACK OUT

AND TX'D BY THE MUX.

4When you have verified that the Sync Data Channel is operating correctly, enter the following to end the test:

ATZ (hit Return)

or

AT&T0 (hit Return)

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Contents MultiMux Page MultiMux #MMV1600C #MMV3200C Record of Revisions RevisionDescriptionTable of Contents Troubleshooting CommandsOperating Procedures Service, Warranty and Tech SupportTables AboutThisManual Service, Warranty and Tech Support 1.1 Statistical Multiplexing BackgroundDescription of Statistical Multiplexing Communications Product DescriptionMultiMux MMV1600/3200 Series Block Diagram Page Dual Composite Links System Features Voice/FaxNetworking Dynamic Load BalanceDiagnostics Channel SwitchingCommand Modem Parameter MemorySynchronous Data Channel Dynamic BufferingResponse Time Control AU7USA-18883-DE-N DSU FCC Regulations for Telephone Line InterconnectionDOC Terminal Equipment AU7USA-20328-MD-EComposite Link Specifications Async Data ChannelsSystem Control Internal DSUCompatibility Voice ChannelsElectrical/Physical DtmfConfiguration Description Model DescriptionConfiguration Configuration 1 Composite Link Configuration Configuration 1 Local Site Channel ParametersConfiguration 1 Remote Site Channel Parameters Configuration 2 Composite Link Configuration Remote Site Configuration 3 Remote Site 2 Channel Parameters Configuration 3 Local Site Channel ParametersConfiguration 3 Remote Site 1 Channel Parameters Configuration 4 FXO to FXS Configuration 4 Local Site Voice/Fax Channel ParametersConfiguration 4 Remote Site Voice/Fax Channel Parameters Configuration 5 E&M Configuration 5 Local site Voice/Fax Channel Parameters Configuration 5 Remote Site Voice/Fax Channel ParametersConfiguration 6 FXS to FXS Configuration 6 Local Site Voice/Fax Channel Parameters Configuration 6 Remote Site Voice/Fax Channel ParametersRemote Site Configuration 7 Local Site Voice/Fax Channel Parameters Configuration 7 Remote Site Voice/Fax Channel ParametersConfiguration 8 LAN to LAN Page StepProcedure InstallationProcedureCabling Procedure External Modem/DSU with RS232C InterfaceSync Data Channel Port B only Step ProcedureV.35 Interface Async ChannelComposite Link Cabling Configuration Procedure Supervisory ConsoleCommand Modem Step Procedure Async Channels Step Procedure Voice/Fax ChannelsPage ATC1B4800P1F1E0 Command SummaryType Command Description $DSUBCL SNGA..H$DSUACL $DSUASP#MA CommandDescriptionGeneral Commands Parameters H command menu is as follows General HelpStore New HelpH6 menu is as follows H4 menu is as followsH5 menu is as follows H7 menu is as followsChannel Parameter Commands ENQ/ACK DTRMLA/B/D SB1 SB2$DSUSP Composite Link Speed and Clocking Commands$DSUCL $ MuxacliAdditional Composite Link Commands $MUXBReport Retransmit TimerList Composite #RBxxxxxVoice/Fax Channel Commands Command Level Local Interface WireSilence Suppression ATV1/2LIFXOATV1/2RIFXO Test CommandsATV1/2LIFXSL ATV1/2RIFXSGT12 Command Modem CommandsT11 Configuration of Port a Composite Link MultiMuxOperatingProceduresMultiMux Operating Procedures Configuration of Port B Composite LinkConfiguration of Port B Sync Data Voice/Fax Operating Procedures Voice/Fax Operating ProceduresCommand Modem Access on Command Modem Operating ProceduresCommand Modem Operating Procedures Command modem operation and put ImportanceofCompositeStatistics IntroductionTestCables TroubleshootingGuideData Troubleshooting Guide RD LED on RD OFF Voice/Fax Troubleshooting Guide Voice/fax channelCannot communicate Local Loop Test #4 ChannelDeviceTestingChannel Device Testing Procedure Remote Digital Loop Test #5 DSUandCommunicationsLineTestingDSU and Communications Line Testing Procedure Watch DOG Test Passed MultiMuxFunctionalTestingProceduresMultiMux Functional Testing Procedures VOICE/FAX Loopback Test #12 Voice/FaxChannelTestingVoice/Fax Channel Testing Procedure SyncDataChannelTesting Sync Data Channel Testing ProcedureService, Warranty and Tech Support Repair Procedures for International Distributors Ascii Character Code/Hex/Decimal Conversion Chart AppendixASignal Information Negative Positive Appendix BCabling Diagrams Appendix CCommand Port Cables DCE to DTE cablingComposite Link Cabling RJ48 Cabling for Internal DSU Description FXO Description FXS Description RJ45 Spade Lug Wire Color FunctionVoice/Fax Channel Connectors I-V Voice/Fax Channel CableRepeat Command Name DefaultAnswer a LastATO ATH1ATH0 ATQ1Read or ATD5551212RRegister WriteUser Profiles Configuration displaysView Active Store ActiveATX2 ATX0ATX1 Returning to Command ExecutionMode While After DialAppendix E Table E-1. LED IndicatorsIndicator Description FCR LED Indicators DescriptionBack Panel BPS Modem DIAL-UP Line Connector ON/OFF SwitchPower Connector Command Port TERMINAL/PC ConnectorVOICE/FAX Channel 1 E&M Connector VOICE/FAX Channel 2 FXS ConnectorVOICE/FAX Channel 2 FXO Connector VOICE/FAX Channel 1 FXS ConnectorChannel # Channel Board Number of Channels SwitchRS232C/V.35 Shunt Appendix F Flow Control BackgroundOff Printer pacing and Flow Control Glossary of Terms Page Format Page Parameter Page Page Symbols DOC DSULads External Composite LinkFXO FXS MultiMux Functional Testing Procedure List Channel Parameters CommandLoad DSU Factory Defaults Command Link ProtocolREN PDNPstn RJ48SStdm Stop Bit Command SB1-SB2Transmit XMT Indicator Word Length Select Command WL5-8 Voice/Fax Channel Testing ProcedureVoice/Fax Input Level Gain Command Voice/Fax Channels